A Narrative Review on Prevention and Early Intervention of Challenging Behaviors in Children with a Special Emphasis on COVID-19 Times

Background COVID-19 and the measures stemming from efforts to control it have affected the psychosocial wellbeing of children and adolescents. The increasing trend of challenging behavior has exerted further pressure on parents and schools. Understanding socioemotional development and interrelating triggers is the key to management. Early interventions prevent the future threat of mental illness and risky acts. Effective strategies are ones that primarily focus on strengthening parent–child interactions. Aim The purpose of this paper is to review the literature on the (i) psychosocial and behavioral impacts of COVID-19 on children/adolescents and (ii) approaches to identify determinants of challenging behaviors as a principal guide to effective interventional strategies for children and their families. Methodology Electronic database searches of PubMed, ScienceDirect, Medline, and Scopus were conducted to identify studies meeting the inclusion criteria that address the impact of COVID-19 on behaviors, contributing factors, and management in the context of families/schools. The content of the selected articles was themed under five categories, namely the developmental milestones, the Pyramid Model, the Positive Behavioral Support, the management strategies, and the impact of COVID-19 on children/adolescents’ behavior. Results The present review demonstrates considerable influence of COVID-19 on children and adolescents’ behavior and mental wellbeing. It stresses the importance of early family-based interventions focusing on the triggers of challenging behavior. Functional Behavioral Assessment and Behavioral Intervention Plan provide a systematic analysis with a strategic plan that support children’s self-regulation and socioemotional intelligence. Regular behavioral screening is vital to promote prevention and early management. Conclusion Managing behavioral difficulties remains an area of deficit for parents, teachers, and health care providers. With a quality support, parents and schools will be able to clearly characterize the challenging behavior, understand the causes, reinforce parent–child interactions, and consequently, gain the strategic skills required to apply it within natural settings. Timely interventions will limit the risk of future misconduct and mental disorders.


Consequences of Challenging Behaviors
While some children may outgrow this kind of behavior by the time of school entry, others demonstrate persistent and even intensifying patterns, leading to academic failure and social maladjustment. 22 Fifty percent or more of toddlers and preschoolers with disruptive disorders were found to exhibit challenging behaviors at least up to four years later. 16 In a qualitative study conducted by Fox et al 17 families reported that behavioral problems invariably impacted the family structure, routines, and activities. The conclusion of the study has given support to the system perspective, which considers children and family struggles to be the product of interconnected family situations rather than a single environmental element. 23 Disruption of daily routines, home confinement, lack of coping strategies, and changes in sleeping and eating patterns over the period of the COVID-19 pandemic are likely associated with rising rates of mental health challenges, most markedly among children, adolescents, and their families. 24 Evidence from several studies [25][26][27][28][29][30] indicated the importance of early management of behavioral problems in prevention of future risks and adverse outcomes. For example, mental health difficulties, physical health burden, relationship and parenting problems, substance abuse and sexual risk taking. [25][26][27][28][29][30] Hence, structured regulation strategies tackling emotional, behavioral, and psychological perspectives are pivotal to mitigate the adverse effects of the pandemic. Understanding the factors that influence behavior is useful for successfully implementing effective interventions.
Thus, the present review aims to synthesize the available literature on (i) the impact of COVID-19 on children and adolescents' behaviors (ii) determinants of challenging behaviors in relation to environment and social-emotional development; and (iii) a family-centered strategic interventional framework for the management of such behaviors.

Search Strategy
We reviewed the literature pertaining to determinants and intervention strategies aimed at managing challenging behaviors among children and adolescents. We conducted an electronic search for studies from July 2021 through September 2021, using the following electronic databases: PubMed, ScienceDirect, Medline, and Scopus. A combination of the following keywords was used to search for titles and abstracts: "challenging behavior" OR "maladaptive behavior" OR "social-emotional" OR "internalizing" OR "externalizing" OR "children" OR "adolescents" OR "Pyramid Model" OR "COVID-19" OR "Behavioral intervention" OR "positive behavioral support" OR "family-centered" OR "school". We then conducted hand searches using reference sections from retrieved articles. To maximize the potential of studies included no restriction to publication date or language was applied.

Selection Process
The inclusion criteria established for the selection of the articles were: (1) focusing on children and adolescents' behavior up to 18 years old; (2) addressing developmental and socio-emotional determinants of challenging behavior; (3) discussing the impact of COVID-19 on children/adolescents' behavior; (4) Provide assessment of challenging behavior using Positive Behavioral Support, and (5) manage in the context of families and/or schools. Articles were excluded from the review if they examined children with developmental or mental disabilities due to the likelihood of interference with the prevalence, severity, assessment, or management of challenging behaviors.

Data Collection Process
Two independent reviewers were involved in the database search, and any disagreement was resolved by discussion or by a third reviewer. Articles that met the selection criteria were retrieved for this review and the relevant contents of the articles were divided into five theoretical categories, including: (i) developmental milestones; (ii) the Pyramid Model; (iii) Positive Behavioral Support; (iv) management strategies for challenging behavior in the context of families and schools; and (v) the impact of COVID-19 on children's or adolescents' behavior.

Behaviors Relative to Developmental Milestones
It is critical to recognize the age-appropriate childhood developmental milestones (ie, motor, verbal, social, emotional, and cognitive skills) as markers for behavioral acts, particularly throughout the transition into more advanced milestones. 31 Some challenging behaviors are developmentally appropriate for youngsters as they gain new abilities and progress through life stages. 32 For example, the peak of physical aggression between the ages of 17 and 42 months is considered typical in this developmental period. 33 Transitions such as separation from parents, attempting to be more independent, or frustration due to a lack of abilities may stimulate emotional distress. 34 Nevertheless, it is important to acknowledge that every behavior serves a function or purpose. For example, communication difficulties such as delayed language or speech or poor social competence may trigger challenging behavior as a way of communicating with their environment, especially during anxious or stressful situations. 35

The Pyramid Model
The Pyramid Model is an evidence-based, multi-tiered framework that supports young children's social, emotional, and behavioral development in early years settings. 36 It is conceptualized to provide three levels of intervention practice: universal promotion for all children, secondary preventions for those at risk of social emotional delays, and tertiary interventions for those with persisting behavioral problems 37 (Figure 1).

Tier 1: Universal Promotion
(a) Nurturing and responsive relationships: Enhancing school-family partnerships and setting mutual goals is a key to effective solutions. 38,39 The Centers for Disease Control and Prevention (CDC) considered nurturing relationship as a primary component of early childhood education that promote positive health-related outcomes especially for at-risk children. 39 (b) High quality supportive environments: Appropriate behaviors are best aroused within a stimulating, consistent and interactive learning environment. 40 When kids are taught rules and expectations, challenging behaviors are replaced with opportunities. In an attempt to correct a particular behavior, excellent practice advises that five or more efforts to praise children for positive behavior are needed. 41

Tier 2: Secondary Prevention
Targeted social-emotional support: the focus of this level is to support social skills and emotional regulation, especially for at risk children who need more systematic and focused instructions. 41 Children are assisted in expressing their emotions, improving problem solving skills, cooperative responding, peer interaction, and dealing with negative emotions such as anger. [41][42][43] For example, parents and teachers can lead activities through behavioral modeling and role-play with positive reinforcement strategies when a desired behavior is demonstrated. 41

Targeted Social Emotional Supports
Intensive Intervention s Individualized intensive intervention: children with persistent behavioral problems not responding to previous tiers are offered a rigorous, tailored intervention using PBS. Progress is continuously monitored in relation to specific pre-determined goals. 44,45 Positive Behavioral Support (PBS) PBS is a person-centered, evidence-based strategy to assist children with behavioral problems in a variety of settings. 46 It deems challenging behavior as a product of multiple interactive variables of interpersonal relationships, physical environment, reactions of others and the way support is provided. 47 Individual factors such as trauma, intellectual disability, general health, and mental health should all be considered. 48,49 PBS is most effective when planned strategies are implemented in a consistent manner. 50 Families and teachers are encouraged to work together to achieve the level of fidelity required to produce desirable outcomes. 50,51 PBS consists of four main steps: FBA; developing a hypothesis about why the behavior is happening; undertaking a functional behavior analysis to test the hypothesis; and developing a BIP. 51,52 Functional Behavioral Assessment (FBA) FBA is a method used to identify the associations between physiological or environmental factors and behavioral problems. 53 The goal is to detect variables related to the occurrence of a specific behavior and to determine the function or purpose of that behavior in relation to one of four categories: 53 social attention, escape, tangible, ie, the desire for certain things, or sensory, ie, internally rewarding or assisting in coping with negative emotions such as boredom or anxiety.
Topography, incidence, and duration of behavioral problems are identified through interviews, observations, and analysis. 54 Precedent events that occur prior to the problematic behaviors are outlined, as are the consequences that maintain the behavior. 54 Successful implementation of PBS was shown to be effective in minimizing challenging behavior through enhancement of new target skills. [55][56][57][58][59] Behavior is assessed broadly in three stages: indirect, direct, and hypothesis testing. 60 Indirect evaluation includes gathering information from existing databases through interviews with parents, teachers, or peers. 60 The key is to establish a valid definition of the target behavior. For example, a defiant tantrum can be expressed by throwing materials off the desk, folding the arm and/or using inappropriate language. In the direct stage, extended analysis is carried out to identify frequency, duration, topography, and the environment in which the behavior occurs. In the final stage, hypothesis testing aims to translate the findings of previous steps into an A-B-C statement that addresses the causes of the problematic behavior, the consequences that reinforce a behavior, and the provision of replacement behaviors. Examples of ABC observation for challenging behavior are illustrated in (Table 1) and real-world scenario examples of ABC behavior are shown in (Table 2).

Behavioral Intervention Plan (BIP)
BIP consists of multicomponent interventions that are aligned with patterns observed throughout the assessment. 61 Given that behaviors can be context-dependent (eg, a child only hits when sibling takes away his toys) and multi-functional (eg, screaming occurs both to obtain parental attention and delay certain tasks), combined interventions are usually recommended. 61

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BIP include a clear explanation of the behavior, the relationship between cause and effect, interventions used and their outcomes, behavioral goals, a plan for supporting new behavior, a description of success, evaluation, and monitoring process. 62,63 When an intervention strategy is selected, guidance might aim for either changing the antecedents and/or the consequences related to a behavior (ie, using antecedent and consequence strategies) or developing more socially appropriate and adaptive replacement skills. 63 Focusing on behavioral triggers, antecedent interventions promote behavioral change through either eliminating or adding antecedents that ultimately reduce the likelihood of challenging behavior. 64 Examples of ABC strategies by behavioral function are presented in (Table 3).
In school settings, interventions may include environmental modifications such as allowing students to sit in a specific location in the class or providing a quiet, distraction-free environment. Working in small groups, changing tasks, oral tests, curriculum material adaptations and group/individual counselling, are further examples. 59,65 Flowchart of FBA and BIP is illustrated in (Figure 2).

Responding to Challenging Behaviors
Aside from educating a child on the appropriate methods of communication, the way parents/teachers react to a particular behavior remarkably contributes to the duration, frequency, or intensity of such behavior. 58 A message should be conveyed to the child that challenging behavior will not be successful.
The verbal or physical redirection method is a simple but highly effective strategy for shifting a child's behavior into a more desirable one. 66 For example, once Sarah appears ready to toss a toy when she is not getting attention, her mom can redirect her by saying, "As soon as you put away the toys, we can read your favorite bedtime story."

Family-Centered Intervention
Being primary caregivers, parents are considered the most valuable resources for the management of challenging behaviors. 67 Interventions are more likely to have an impact when parental focus is shifted from consequences to reasons of misbehavior. 33 Parental coaching aims to support parents in employing new skills when challenging behaviors occur. It is based on problem-solving skills gained through scaffolding, with an emphasis on three areas of support: cognitive, emotional, and autonomy. 57 Family-centered methodology works on improving parents' capacity to principally understand their child's social and emotional cues and consequently, promote self-regulatory behavior and emotional intelligence. 68 Natural environments such as home and school are considered the ideal settings for interventions, allowing observation of multiple interrelated factors that can affect children's behavior. 69, 70 Lucyshyn et al 71 demonstrated the significance of interventional modeling and parental coaching through problem-solving discussions, behavioral rehearsal, self-monitoring, and evaluation.

Parental Model
The aim of the model is to foster family involvement in supporting their child's early development. Instead of addressing behavioral problems with either parents or children independently, strategies are viewed in terms of parent-child

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interactions. 72 Roggman et al 73 proposed that parents need to be actively supported in recognizing their own resources, strengths, and needs, focusing on their own children rather than a standardized curriculum. Helping parents discuss their ideas, actions in place, and feedback with the provision of problem-solving scenarios are crucial for successful outcomes. 74

Parental Scaffolding
The way in which adults provide children assistance to obtain new skills as they grow through the stages of development is described as scaffolding. 75 For instance, caregivers may breakdown a certain task into smaller, simple steps and provide elements of basic understanding that will help in the solution and actual demonstration of the task. To enhance the effectiveness of scaffolding and reduce the level of frustration caused by lack of skill, modelling, provision of hints or cues, and adapting materials may be used. 75 Scaffolding has been identified as a high-quality parenting approach leading to favorable behavioral tendencies and self-regulation using children's own abilities. 76 Prior to the occurring of a challenging behavior, it is important for parents to teach their children problem solving skills instead of long speeches that the child may or may not comprehend. 77 Three types of scaffolding have been identified, including cognitive, emotional, and autonomous. 33 (i) Cognitive support.
This type of support aims to empower children to understand and apply new strategies, review problem solving steps, and realize rational underlying decisions in the direction of self-guided learning. 26 Through effective feedback, cognitive support helps children accept different viewpoints and create a balance between pride in their abilities and recognizing the importance of reliable guidance that promotes self-confidence. 78 (i) Emotional support.
Scaffolding with emotional support implies the use of positive reinforcement, verbal, and nonverbal communication to enhance emotional regulation. 33 Mothers who help their children develop emotional literacy and teach coping strategies through play, storytelling, role modelling, taking turn, and sharing, tend to have children who are engaged in more prosocial behavior, while aggressive behaviors are associated with those who are inattentive of their child's emotional triggers. 79 (i) Support for Autonomy.
Refers as the ability of parents to provide support for their children, while preserving their independency and decisionmaking skills. 33 Autonomy-promoting questions give opportunities for children to reflect on their own mental processes. 78 For example, asking the child "How do you think we should handle this?" or "How do you feel?" enables self-expression and improve one's sense of control. Therefore, instead of asking the child to say sorry, he/she can describe their feelings and how they believe it can be-improved. Autonomy support via stimulating parent-child interaction and minimizing judgment/control will improve problem-solving abilities, empathy, compassion, and prosocial behaviors. 33

Impact of Covid-19 on Children Behavior
The unexpected disruption of the social fabric and norms has affected the behavioral and mental health of the public, including children. [80][81][82][83][84][85][86][87][88][89][90] The psychosocial wellbeing of children has been affected in several ways, as this unprecedented situation changed the way they typically grow, learn, play, behave, interact, and regulate emotions.
Schools' closures, transition into remote learning, and the absence of face-to-face peer interactions have impacted important perspectives in children's lives. Children, especially younger ones, were deprived of opportunities such as physical activity, playing and group activities, resulting in substantial disruption to critical developmental milestones. In China, Wang et al 92 explored the psychosocial and behavioral problems of 11,072 children and adolescents in the early stages of reopening schools. Among psychosocial behaviors, parent-offspring conflict, prolonged homework time, increased sedentary behavior and screen time, sleep problems, and physical inactivity were most frequently identified. Higher internalizing and externalizing behaviors were noted, specifically, children aged 6-11 who returned to school showed more depression, compulsive behavior, and hyperactivity, while adolescents of age 12-16 showed more aggressive behavior, compared to those who were home schooled. 92,93 Previous studies have demonstrated that in addition to the increase in clinging, inattentive and irritability documented at the beginning of the epidemic, with its link to disrupted school and daily routine, poor dietary habits leading to obesity, and increased use of electronic devices, can further aggravate adverse effects on children and adolescents. [94][95][96] School reopening has brought a ray of hope around the world in terms of restoring the sense of structure and stimulation necessary for children's psychosocial wellbeing. 97,98 However, the readjustment period is expected to deal with several negative sequelae emerging from academic pressure, students' relationships with teachers and peers, and difficulty adjusting to school routine.
Previous studies indicated that academic pressure driven by parents' or teachers' expectations, irrespective of age and sex, was amongst the most identified stressors in students. 99,100 Children who were disproportionally affected including those with preexisting mental health concerns, developmental disorders, learning disabilities or any other challenges may experience greater adjustment issues and require individualized learning plan with additional support. 101

Limitations
This review had certain limitations, mainly attributed to the subjective nature of the narrative style literature. First, there is the possibility of misinterpretation of results and drawing conclusions (which is usually due to selection bias, subjective weighing of included studies, and unspecified data synthesis). To mitigate this limitation, we adopted several methods (ie, forming a search strategy, the process of selection and data synthesis) more characteristic of systematic reviews. Use of these methods helped to reduce selection bias by ensuring our source selection decisions were procedurally structured and precise.
The second limitation is the inclusion of a small number of studies that were conducted during the COVID-19 pandemic, creating a perception of theoretical rather than practical relevance. To overcome this limitation, we have enriched the introduction with additional post-pandemic (at early and later stage) study results to show the significance of the increasing trends and potential related mental health illness.

Conclusion
The results of the present review highlighted the considerable impact of the COVID-19 pandemic on children/adolescents' behaviors and their mental wellbeing. Identifying behaviors' determinants in the context of developmental, environmental, and sociocultural remains the key step to mitigating the adverse effects such as social maladjustment, academic failure, and future risky acts. Scalable and family-based mental health interventions built on the Pyramid Model, FBA, and BIP will promote effective and sustainable outcomes.
The present review supports that enhancing parental capacity through training, coaching, and empowering them to identify their own resources and strengths will help construct positive parent-child interactions. Additional attention should be given to the children/adolescents who are more susceptible to mental health challenges through a collaborative approach involving parents, schools, healthcare providers, and mental health services.
Owing to the COVID-19 containment measures and the impediment to traditional face-to-face services, other innovative psychological supports, such as Internet Cognitive Behavioral Therapy, may be an effective alternative to reduce barriers to access mental health resources.

Implications for Practice, Policy, and Future Research
The empirical literature synthesis focuses on several key stakeholders (parents, schools, practitioners, community, policymakers, and researchers) who work with children or adolescents. The framework of Functional Behavioral Assessment and Behavioral Intervention Plan offers a strategic template that facilitates and supports a comprehensive array of evidence-based services components, from developmental surveillance, promotion, and prevention to intensive intervention, through an individualized plan tailored to the child and family's needs.
Professional development for practitioners, schools, and parents is important to ensure they have the adequate skills and knowledge to conduct behavioral assessments, identify determinants, socio-emotional competences, and implement effective interventions within natural environments accordingly. The current review provides an expanded understanding of the role of mental health support within the school environment, allowing for continuous monitoring and evaluation.
The results from this review have provided sufficient grounds for further longitudinal research to examine the impact of supportive environments, parental coaching, and interventions on children's behaviors as well as the consequences of persistent challenging behavior in developing future mental health illnesses or risky acts. Another avenue for research would be to examine the adverse effects related to COVID-19 restrictive measures on the mental health of children, adolescents, and families.

Data Sharing Statement
Not applicable because of review type of the article. All data and material are available under references.